I was told the output impedance is 5ohms, 5 times higher than a FiiO A3, A5 or Objective2, afaik, but inline with the higher output impedance of topping offerings, like the Nx1s(3.5ohms), and A30(10ohms&30ohms). So, maybe not the most suitable for typical "consumer" spec headphones, at 32ohms,. sadly. If it were like 1ohm output impedance, i'd have probably snapped it up by now.., ;-)